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another tech ball to put on our Christmas list ?

Jun 17, 2009
15,129
0
Portland, OR
My understanding of the RevFire is that it doesn't actually measure the 'velocity' of the pitched ball, but instead measures the 'time' of flight. It assumes a particular 'distance' and then computes 'velocity' as 'distance/time'.
 
Apr 27, 2016
14
1
I would love to get my hands on a RevFire just to compare it to my PitchTrackers. The only way we've been able to get readings on the PT is to eliminate the backswing, which I'm afraid may cause timing issues when pitching live. Would like to see if the RevFire 2 can register readings with out altering mechanics.
 
Apr 28, 2014
1,100
48
You will find that a radar gun will give a different value for pitch speed.
At Coastal 4 weeks ago 61.2 on Rapsodo. I catch for her and did when she couldn't break a pane of glass :)
Also use the packet radar on her once a week. Speed is between 58-62. Now I can track spins which is what she needs help with.
 
Jun 17, 2009
15,129
0
Portland, OR
At Coastal 4 weeks ago 61.2 on Rapsodo. I catch for her and did when she couldn't break a pane of glass :)
Also use the packet radar on her once a week. Speed is between 58-62. Now I can track spins which is what she needs help with.
I believe you.

Your RevFire looks to be factoring in a distance of 36.8ft. If I assume that your daughter strides out 5ft prior to the release, and that the catcher puts out their mitt to catch the ball at approximately the back edge of home plate, then the 61mph reading would be more like 62.9mph.

The 'velocity' readings on the RevFire turn out to be a function of pitching distance. What it really measures is 'time'.

To be honest ... 'time' IMO is more important than is 'velocity'. If Pitcher-A strides a foot further than Pitcher-B, and throws at the same velocity, then the RevFire will give a higher number to Pitcher-A. A radar gun would give both pitchers the same 'velocity' reading. However, Pitcher-A is giving batters less reaction 'time' ... and it is 'time' that the RevFire actually is measuring.

It is possible for two pitchers to compete while being measured with both a RevFire and radar gun ... and for a RevFire to suggest one throws at a higher velocity, and for a radar gun to suggest that other pitcher throws at a higher velocity. The radar gun is correct in terms of differentiating which pitcher actually threw at the higher 'velocity' ... but the RevFire number better represents the reaction 'time' given to the batter.
 
Last edited:
Apr 28, 2014
1,100
48
I believe you.

Your RevFire looks to be factoring in a distance of 36.8ft. If I assume that your daughter strides out 5ft prior to the release, and that the catcher puts out their mitt to catch the ball at approximately the back edge of home plate, then the 61mph reading would be more like 62.9ft.

The 'velocity' readings on the RevFire turn out to be a function of pitching distance. What it really measures is 'time'.

To be honest ... 'time' IMO is more important than is 'velocity'. If Pitcher-A strides a foot further than Pitcher-B, and throws at the same velocity, then the RevFire will give a higher number to Pitcher-A. A radar gun would give both pitchers the same 'velocity' reading. However, Pitcher-A is giving batters less reaction 'time' ... and it is 'time' that the RevFire actually is measuring.

It is possible for two pitchers to compete while being measured with both a RevFire and radar gun ... and for a RevFire to suggest one throws at a higher velocity, and for a radar gun to suggest that other pitcher throws at a higher velocity. The radar gun is correct in terms of differentiating which pitcher actually threw at the higher 'velocity' ... but the RevFire number better represents the reaction 'time' given to the batter.
That makes perfect sense!!
 

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